php file upload handler example can be found on https://github.com/blueimp/jQuery-File-Upload/wiki/Uploading-to-nginx-using-the-nginx-upload-module-with-php_handler and https://github.com/blueimp/jQuery-File-Upload/tree/master/server/php

Recently I was assigned to a task about adding a file upload feature to a existing nginx server on CentOS. Nginx was chosen years ago because it simply handles some static files only. If the file upload was a requirement, using apache is simpler as computation power isn’t a constraint in our case. Background CentOS 7 …